I have a small Lansweeper machine with ~50 Win10/11 computers. Since the upgrade to the latest 12.5 (I was previously on 10.6), LS will only scan and add a single computer to the scan queue. Normally, as you likely already know, when you are looking at a list of assets, you can hit the "Rescan" button, and it adds all of the computers in the visible list to the scan queue. Since I upgraded to 12.5, it only scans the very first computer.
If I try to narrow down to a shorter list, say 5 computers, and hit rescan, it does the same thing, only adds the first device to the scan queue, and the other devices remain unscanned.
I can scan each the device one by one just fine, as long as no other device is currently being scanned. The automatic hourly scans have also stopped working.